Cable clamp for coiled tubing

Abstract

An electrically conductive cable is held within the inner bore of a well tool connected to coiled tubing by a clamp which comprises a split ring having radially outwardly extending lug portions on the split ends of the ring. The lug portions are located within a longitudinally upward slot of a sleeve located within the inner bore of the well tool. Upon application of tensional force to the cable, the lugs of the split ring clamp are drawn into the taper thereby compressing the split ring in tighter engagement with the outer surface of the cable.

Having thus described my invention, I claim: 
     
       1. In a well treatment system wherein an electrically operable tool is connected to a remote end of coiled tubing having an electrically conductive cable passing therethrough to establish electrical communication between the tool and surface equipment, the tool having a first longitudinal axis and an inner bore and the electrically conductive cable having an outer surface, the improvement which comprises a cylindrical sleeve having a second longitudinal axis which coincides with said first longitudinal axis and further having a longitudinally tapered slot therein located within the inner bore of the well tool and a split ring clamp having a third longitudinal axis eccentric with said first and second longitudinal axes and further having end portions, the clamp encircling a substantial portion of the outer surface of said cable, said split ring clamp further including radially outwardly extending lug portions extending into said longitudinally tapered slot of said sleeve whereby tension forces applied to said cable cause said clamp and said lugs to move longitudinally within said tapered slot thereby reducing a gap between said ends of said split ring. 
     
     
       2. The system as set forth in claim 1 wherein an inner surface of said split ring clamp further include gripping means. 
     
     
       3. The system as set forth in claim 2 wherein said gripping means comprises helical threads. 
     
     
       4. The system as set forth in claim 2 wherein said gripping means comprises radially inwardly extending teeth. 
     
     
       5. The system as set forth in claim 1 wherein an inner surface of the split ring clamp has a conical taper in a direction opposite to that of said tapered slot.